This study offers new approach to the non-ferrous metals? concentration from Pb-Zn slag using a magnetic separation. technology is more ecological than conventional processes, therefore it may have substantial influence on progress of metallurgical beneficiation techniques. Physicochemical and mineralogical investigations indicated that an inhomogeneous with considerable Pb, Zn, Cu, Ag amounts. Experiments showed separated fraction includes unequal quantities arsenic, preventing output being...

Signatures of antiferromagnetism (AF) in the underdoped $L{n}_{2\ensuremath{-}x}{\text{Ce}}_{x}{\text{CuO}}_{4}$ $(Ln=\text{Nd},\text{Pr},\dots{})$ family are observed even for doping levels which superconductivity exists. We have looked a similar property different electron-doped cuprate family, ${\text{Sr}}_{1\ensuremath{-}x}{\text{La}}_{x}{\text{CuO}}_{2}$, consists ${\text{CuO}}_{2}$ planes separated by Sr/La atoms, and is exempt possible influence magnetic rare-earth ions. report...

Fast, reliable, and inexpensive DNA sequencing is an important pursuit in healthcare, especially personalized medicine with possible deep societal impacts. Despite significant progress various nanopore-based configurations, challenges that remain resolution chromosome-size-long readout call for new approaches. Here we found strong rectification the transversal current during single-stranded translocation through a nanopore side-embedded N-terminated carbon nanotube electrodes. Employing...

To characterize stem cells originating from different dental tissues (apical papilla [SCAP], follicle [DFSC], and pulp [DPSC]) test the capacity of Raman microspectroscopy to distinguish between three cell types.SCAP, DFSC, DPSC cultures were generated immature wisdom teeth patients. Cell stemness was confirmed by inducing neuro-, osteo-, chondro-, adipo-differentiaton mesenchymal marker expression analysis flow-cytometry real-time polymerase chain reaction. Cellular components then...

We report a transport study down to 2 K and in high magnetic fields up 20 T of highly $c$-axis-oriented epitaxial thin film electron-doped ``infinite-layer'' cuprate superconductor ${\text{Sr}}_{1\ensuremath{-}x}{\text{La}}_{x}{\text{CuO}}_{2}$ with ${T}_{c}$ 26 K. A 16 field perpendicular the $ab$ plane completely suppresses superconductivity, even at lowest temperature. Perpendicular shift resistive transition lower temperatures, without significant broadening, way similar that seen...

We studied the in-plane angular magnetoresistance (AMR), in normal state, of underdoped superconducting Sr1-xLaxCuO2 , which has simplest crystal structure among cuprates. The measurements two thin films with different dopings were performed intense magnetic field H (up to 22 T). longitudinal at temperature T is negative and scales H/T. For both samples, AMR anisotropic shows an unexpected dependence on intensity. While low field, one observes essentially twofold oscillations for more doped...

The in-plane penetration depth of ${\text{Sr}}_{0.88}{\text{La}}_{0.12}{\text{CuO}}_{2+x}$ thin films at various doping obtained from oxygen reduction has been measured, using ac-susceptibility measurements. For the higher samples, superfluid density deviates strongly $s$-wave behavior, suggesting, in analogy with other electron-doped cuprates, a contribution nodal hole pocket, or small gap on Fermi surface such as an anisotropic order parameter. low value densities, likely due to strong...

A method is proposed for the design and optimization of structural parameters GaN-AlGaN Bragg-confined structures with respect to peak intersubband absorption from ground first excited state,1 /spl rarr/ 2 electronic transition, in near infrared spectral range. An above-the-barrier bound state was used extend range transition energies above values available conventional quantum wells. Intrinsic polarization fields nonparabolicity effects were taken into account. The selection optimal...

We report a study on the superconducting properties of e-doped Sr0.88La0.12CuO2 (SLCO) thin films. SLCO has an infinite layer structure consisting CuO2 planes, 3.40 A apart, separated by Sr, La planes. Highly c-axis oriented films, with critical temperature 22–23 K, were epitaxially grown sputtering. Their resistive transition hardly broadens under perpendicular magnetic field, giving narrow vortex liquid region. The current densities Jc measured magnetically and transport are in...

Functionalization of electrodes is a wide-used strategy in various applications ranging from single-molecule sensing and protein sequencing, to ion trapping, desalination. We demonstrate, employing non-equilibrium Green's function formalism combined with density functional theory, that single-species (N, H, S, Cl, F) termination graphene nanogap results strong in-gap electrostatic field, induced by species-dependent dipoles formed at the electrode ends. Consequently, field increases or...

The design of ZnCdSe-ZnMnSe-based quantum wells is considered, in order to obtain a large shift the peak absorption wavelength far infrared range, due giant Zeeman splitting with magnetic field, while maintaining reasonably value absorption. A triple quantum-well structure suitable choice parameters has been found satisfy such requirements. maximal tuning range between 14.6 and 34.7 meV obtained, when field varies from zero 5 T, so absorbed radiation decreases 85.2 35.7 /spl mu/m up 1.25% at...

In this study mechanical properties of PVC mixtures (PVC, stabilizer, lubricant, filler) such as tensile strength, elongation, breaking and elongation were investigated. Unmodified calcite, well calcite modified by stearic acid, used fillers in wet dry processes. The containing the procedure have better compared to those with process. Tensile strength mixture 1.5% acid using process, are higher for 2.8% 5.2%, respectively, same amount difference between increases increase concentration up...

We demonstrate transitional dimensionality crossover of radial discrete diffraction in optically induced radial-elliptical Mathieu photonic lattices. Varying the order, characteristic structure size, and ellipticity beams used for lattices generation, we control shape distribution over combination direction with circular or elliptic. also investigate transition from one-dimensional to two-dimensional by varying input probe beam position. Discrete is most pronounced along crystal anisotropy direction.

We have epitaxially grown c-axis oriented SrxLa1-xCuO2 thin films by rf sputtering on KTaO3 substrates with χ = 0.12. The as-grown deposits are insulating and a series of superconducting various Tc(ρ=0) up to 26 K been obtained in-situ oxygen reduction. Transport measurements in the ab plane these samples undertaken. report original results temperature dependence Hall effect anisotropic magnetoresistance (T ≥ Tc). discuss magnitude upper critical fields anisotropy, effect, which presents...

The results of an analysis the total suspended particles (TSP), solvent organic extracts (TSOE), and polycyclic aromatic hydrocarbons (PAHs) in aerosol samples collected from atmosphere Herceg Novi 17th June to 15th September 1998 1999 are presented. TSP TSOE concentrations were determined by standard gravimetric method, whereas PAHs part analyzed GC-MS method. difference found contents between two consecutive years (before after bombing Yugoslavia) was attributed changes intensity origin...

We demonstrate transitional dimensionality of discrete diffraction in radial-elliptical photonic lattices. Varying the order, characteristic structure size, and ellipticity Mathieu beams used for lattices generation, we control shape distribution over combination radial direction with circular, elliptic, or hyperbolic. also investigate transition from one-dimensional to two-dimensional by varying input probe beam position. The most pronounced is observed along crystal anisotropy direction.

Triacetone triperoxide (TATP) is a highly potent homemade explosive commonly used in terrorist attacks. Its detection poses significant challenge due to its volatility, and the lack of portability current sensing techniques. To address this issue, we propose novel approach based on single-molecule TATP air using device where tunneling N-terminated carbon-nanotubes nanogaps measured. By employing density functional theory combined with non-equilibrium Green's function method, show that tens...